Achilles HB-280DX 2008 boat specs
Achilles
Achilles HB-280DX 2008
2008
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VS
Achilles SGX-122 2007 boat specs
Achilles
Achilles SGX-122 2007
2007
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Achilles HB-280DX 2008 vs Achilles SGX-122 2007 — Same Brand, Different Boat

The Achilles HB-280DX 2008 vs Achilles SGX-122 2007 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

On paper these two are close siblings in the size department — Achilles HB-280DX 2008 at 9,0 ft versus Achilles SGX-122 2007 at 12,0 ft. At 148 lbs and 165 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

Both boats share a closely matched power ceiling — 15 hp for the Achilles HB-280DX 2008 and 35 hp for the Achilles SGX-122 2007. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.

For family outings this is probably the sharpest distinction between the two. The Achilles SGX-122 2007 is rated for 5 passengers, while the Achilles HB-280DX 2008 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Achilles SGX-122 2007 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Achilles SGX-122 2007 comes in at 5 lbs per hp versus 10 lbs per hp for the Achilles HB-280DX 2008. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.

Bottom line: Choose the Achilles SGX-122 2007 if your priority is putting more people on the water — it handles 5 passengers and at 12,0 ft it has the deck room to back that rating up comfortably. The Achilles HB-280DX 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
MakeAchilles
MakeAchilles
ModelHB-280DX
ModelSGX-122
Model Year2008
Model Year2007
Measurements / Dimensions
Beam5 ft. 5 in. (166 cm)
Beam5 ft. 4 in. (162 cm)
Beam - Meters1.65
Beam - Meters1.63
Beam - Inches65
Beam - Inches64
Weight - Detail148 lbs. (67 kg)
Weight - Detail165 lbs. (75 kg)
Weight - kg67.13
Weight - kg74.84
Weight - lbs.148
Weight - lbs.165
Length - Feet9
Length - Feet12
Length - Inches2
Length - Inches2
Length overall - Detail9 ft. 2 in. (280 cm)
Length overall - Detail12 ft. 2 in. (365 cm)
Length overall - Meters2.79
Length overall - Meters3.71
Length overall - Inches11
Length overall - Inches146
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeInflatable Rigid
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter17 in. (43 cm)
Tube diameter17 in. (43 cm)
Engine and Drivetrain
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeOutboard
Engine max15 hp
Engine max35 hp
Operational Info
Maximum capacity1,210 lbs. (550 kg)
Maximum capacity1,475 lbs. (670 kg)
Maximum people4
Maximum people5

Achilles HB-280DX 2008 vs Achilles SGX-122 2007 — Common Questions

Which is the larger boat — the Achilles HB-280DX 2008 or the Achilles SGX-122 2007?
The Achilles SGX-122 2007 is the longer of the two at 12,0 feet overall. The Achilles HB-280DX 2008 comes in at 9,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Achilles HB-280DX 2008 or the Achilles SGX-122 2007?
For trailering, the Achilles HB-280DX 2008 has the edge at 148 lbs dry weight versus 165 lbs for the Achilles SGX-122 2007. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
Which boat can handle a bigger outboard?
The Achilles SGX-122 2007 is rated to a maximum of 35 hp, giving it the larger power ceiling. The Achilles HB-280DX 2008 tops out at 15 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Achilles HB-280DX 2008 is Coast Guard rated for 4 passengers, while the Achilles SGX-122 2007 is certified for 5. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat has the better power-to-weight ratio?
The Achilles SGX-122 2007 has a better power-to-weight ratio at 5 lbs per hp compared to 10 lbs per hp for the Achilles HB-280DX 2008. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Achilles HB-280DX 2008 measures 65" wide, compared to 64" for the Achilles SGX-122 2007. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Are the Achilles HB-280DX 2008 and Achilles SGX-122 2007 from the same manufacturer?
Yes — both the Achilles HB-280DX 2008 and the Achilles SGX-122 2007 are built by Achilles. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.